← John Imlay Mansion

John Imlay Mansion — materials

A rough list to take to a sawmill. The frame is cut green — full-sawn timbers straight from the log — and pinned with dry oak pegs: as the timbers dry they shrink onto the pegs, and the drawbored joints pull tighter. The mill cuts every stick to its section and length; the framer cuts the joints.

Each length is the piece’s cut length plus 10 in for tenons and trimming, rounded up to the foot. A piece longer than 24 ft is ordered in two or more lengths joined by a scarf (A2-16), except a post or a rafter is not scarfed. Board feet are full-sawn: width × depth × feet ÷ 12. Sizes follow the model, which is proportioned from measured drawings, not engineered — a frame that will carry a load is sized by an engineer first.

Section (in)Length (ft)PiecesBoard feetFor
8 × 102181,120gable end girt, W gable · gable end girt, E gable · cross girt at a bent
8 × 825121,600wall post, front and rear walls (corner and bent) · gable mid post · spine post
8 × 8202213wall girt, bay 3 (front and rear)
8 × 8192203wall girt, bay 1 (front and rear)
8 × 8132139wall girt, bay 2 (front and rear)
8 × 8128512kitchen wall post, front and rear walls (corner and bent) · office wall post, front and rear walls (corner and bent)
6 × 1012160kitchen floor chimney header
6 × 10102100first-floor chimney header
6 × 1083120first-floor chimney header · office floor chimney header
6 × 1074140chimney header
8 1/2 × 6 1/2224405sill, gable end
8 1/2 × 6 1/2196525sill, front wall · sill, rear wall
8 1/2 × 6 1/2184332kitchen sill, front wall · kitchen sill, rear wall · office sill, front wall · office sill, rear wall
8 1/2 × 6 1/2152138spine sill, on the cellar spine wall
8 1/2 × 6 1/2132120kitchen sill, gable end
8 1/2 × 6 1/2122110office sill, gable end
8 1/2 × 6 1/27132spine sill, on the cellar spine wall
8 1/2 × 6 1/25123spine sill, on the cellar spine wall
6 × 8 1/210285garret chimney header
6 × 8 1/27260garret chimney header
3 × 1022603,300first-floor joist, sill to spine sill · first-floor chimney trimmer
3 × 1020301,500floor joist, girt to girt · chimney trimmer, either side of the stack
3 × 1019421,995first-floor tail joist at a chimney · floor joist, girt to girt · chimney trimmer, either side of the stack
3 × 101818810first-floor tail joist at a chimney · kitchen floor joist, gable sill to gable sill · office floor joist, gable sill to gable sill
3 × 10155188office floor tail joist at a chimney
3 × 1013321,040hall joist between the cross girts · stairwell trimmer, front and rear of the opening · kitchen floor tail joist at a chimney
3 × 107470chimney tail joist, girt to header
3 × 1068120chimney tail joist, girt to header
3 × 105450chimney tail joist, girt to header
3 1/2 × 8 1/222382,073garret floor joist, beside a rafter
3 1/2 × 8 1/2205248garret tail joist at a chimney
3 1/2 × 8 1/2195236garret tail joist at a chimney
4 1/2 × 6214189gable top girt at the plate line, W gable · gable top girt at the plate line, E gable
4 1/2 × 6196256wall plate
4 1/2 × 6184162kitchen wall plate · office wall plate
4 1/2 × 615268spine plate
4 1/2 × 613258kitchen gable top girt at the plate line, W gable · kitchen gable top girt at the plate line, E gable
4 1/2 × 612254office gable top girt at the plate line, W gable · office gable top girt at the plate line, E gable
4 1/2 × 67116spine plate
4 1/2 × 65111spine plate
4 × 6524240opening header
4 × 6414112opening header
3 × 828402,240common rafter (33.7°, 8/12) · common rafter, headed off at a roof opening
3 × 8257350common rafter, headed off at a roof opening
3 × 8243144common rafter, headed off at a roof opening
3 × 81216384kitchen common rafter (39.8°, 10/12)
3 × 81116352office common rafter (36.9°, 9/12)
3 × 810240roof header at a chimney
3 × 89472kitchen common rafter, headed off at a roof opening · office common rafter, headed off at a roof opening
3 × 87228roof header at a chimney
3 × 8540400roof header at a dormer · dormer rafter · kitchen roof header at a chimney · office roof header at a chimney
3 × 61915428collar (none on the two gable pairs — the gable studs stiffen them)
3 × 6712126kitchen collar (none on the two gable pairs — the gable studs stiffen them) · office collar (none on the two gable pairs — the gable studs stiffen them)
4 × 47437knee brace, corner post to plate (45°), inner half of the wall
4 × 36318dormer front plate
4 × 35315dormer rough sill
3 × 415230gable stud above the plate line, top cut to 8/12
3 × 414228gable stud above the plate line, top cut to 8/12
3 × 413951,235wall stud, front and rear, first story · opening jamb stud, full story · gable stud, first story · gable stud above the plate line, top cut to 8/12
3 × 4121521,824wall stud, front and rear, second story · opening jamb stud, full story · gable stud, second story · opening jamb stud, gable (to the rake) · gable stud above the plate line, top cut to 8/12 · kitchen wall stud · office wall stud
3 × 410220opening jamb stud, gable (to the rake)
3 × 49436opening jamb stud, gable (to the rake) · gable stud above the plate line, top cut to 8/12
3 × 48864gable stud above the plate line, top cut to 8/12 · dormer post, on a trimmer rafter
3 × 47428gable stud above the plate line, top cut to 8/12
3 × 46636gable stud above the plate line, top cut to 8/12 · gable stud above the plate line, top cut to 10/12 · gable stud above the plate line, top cut to 9/12
3 × 4550250window rough sill · cripple stud, under a rough sill or over a header · gable stud above the plate line, top cut to 8/12 · gable stud above the plate line, top cut to 10/12
3 × 4470280cripple stud, under a rough sill or over a header · window rough sill · gable stud above the plate line, top cut to 8/12 · gable stud above the plate line, top cut to 10/12 · gable stud above the plate line, top cut to 9/12
3 × 431648cripple stud, under a rough sill or over a header · gable stud above the plate line, top cut to 8/12 · gable stud above the plate line, top cut to 10/12 · gable stud above the plate line, top cut to 9/12
3 × 423468cripple stud, under a rough sill or over a header · gable stud above the plate line, top cut to 8/12 · gable stud above the plate line, top cut to 10/12
3 × 317226ridge piece
3 × 311650dormer side plate
3 × 3917ridge piece
3 × 38636dormer cheek stud
3 × 37737ridge piece · dormer cheek stud
3 × 361254dormer cheek stud
3 × 35622dormer cheek stud
3 × 341236dormer cheek stud
3 × 33614dormer cheek stud
3 × 3269dormer cheek stud

27,702 board feet of green timber in 1057 pieces.

9 members are longer than a 24 ft stick and are scarfed.

59 members are longer than a 24 ft stick — a post or a rafter is not scarfed, so these are a special order at full length.

Pegs: 275 of dry oak, 1 in by 10 in, estimated joint by joint — order a tenth over. Keys: 28 dry oak keys for the tusk tenons.

Boards: floors about 5,995 sq ft at 1 1/2 in thick (≈8,993 board feet); roof boards about 3,293 sq ft at 1 in (≈3,293 board feet). Add for waste.

Not in this list: stone, brick and mortar; siding, trim, windows and doors; roofing; nails. Nothing here is priced.

Cut list, piece by piece
PieceQtySection (in)Cut length (in)Ends
Sill, front wall18 1/2 × 6 1/2614A6-17 corner · A6-17 corner; scarfed A2-16
Sill, rear wall18 1/2 × 6 1/2614A6-17 corner · A6-17 corner; scarfed A2-16
Sill, gable end28 1/2 × 6 1/2477A6-17 corner · A6-17 corner
Spine sill, on the cellar spine wall38 1/2 × 6 1/249 1/2 – 297A6-17 into the gable sill, or against a chimney · same
First-floor joist, sill to spine sill523 × 10242 3/4A4-14 cogged over the inner half of the sill · on the spine sill
First-floor chimney trimmer83 × 10242 3/4A4-14 on the sill · on the spine sill
First-floor chimney header46 × 1084 – 103A2-08 tusk tenon into the trimmer · same
First-floor tail joist at a chimney243 × 10199 3/4 – 211 3/4A4-14 on the sill or the spine · A3-16 dovetail into the header
Wall post, front and rear walls (corner and bent)88 × 8279 1/8A6-22 foot on the sill · A6-02 head tenon into the plate; A6-05 girts housed and pegged
Wall girt, bay 1 (front and rear)28 × 8210 1/2A6-05 housed tenon into the post, 2 pegs · same
Wall girt, bay 2 (front and rear)28 × 8142A6-05 housed tenon into the post, 2 pegs · same
Wall girt, bay 3 (front and rear)28 × 8229 1/2A6-05 housed tenon into the post, 2 pegs · same
Knee brace, corner post to plate (45°), inner half of the wall44 × 471 7/8A6-03 foot on the post · A6-03 head under the plate
Wall stud, front and rear, first story323 × 4146A2-07 stub tenon into the sill · A2-07 stub tenon into the girt
Opening jamb stud, full story683 × 4125 1/8 – 146A2-07 stub tenon · A2-07 stub tenon
Opening header384 × 630 – 45A2-07 into the jamb · same
Window rough sill323 × 430 – 42 1/2A2-07 into the jamb · same
Cripple stud, under a rough sill or over a header1083 × 47 1/8 – 46A2-07 stub tenon · butts the rough sill or header
Wall stud, front and rear, second story323 × 4125 1/8A2-07 stub tenon into the girt · A2-07 stub tenon into the plate or top girt
Gable mid post28 × 8285 1/8A6-22 foot on the gable sill · A6-05 end girts and the top girts
Gable end girt, W gable28 × 10235A6-05 into the corner post · A6-05 into the mid post
Gable top girt at the plate line, W gable24 1/2 × 6235A6-05 into the corner post · A6-05 into the mid post
Gable stud, first story333 × 4144A2-07 stub tenon into the sill · A2-07 stub tenon into the girt
Gable stud, second story323 × 4125 1/8A2-07 stub tenon into the girt · A2-07 stub tenon into the plate or top girt
Opening jamb stud, gable (to the rake)83 × 496 3/8 – 127 5/8A2-07 stub tenon into the top girt · cut to the rake under the end rafter
Gable stud above the plate line, top cut to 8/12323 × 47 5/8 – 158 3/8A2-07 stub tenon into the top girt · birdsmouthed under the end rafter
Gable end girt, E gable28 × 10235A6-05 into the corner post · A6-05 into the mid post
Gable top girt at the plate line, E gable24 1/2 × 6235A6-05 into the corner post · A6-05 into the mid post
Cross girt at a bent48 × 10235A6-05 into the wall post · A6-05 into the spine post; A6-32 summers, A3-16 joists
Floor joist, girt to girt563 × 10210 1/2 – 229 1/2A3-16 into the girt · same
Chimney trimmer, either side of the stack43 × 10210 1/2 – 229 1/2A3-16 into the girt · same
Chimney header46 × 1062A2-08 tusk tenon into the trimmer · same
Chimney tail joist, girt to header163 × 1044 – 70 1/2A3-16 into the girt · A3-16 dovetail into the header
Hall joist between the cross girts223 × 10142A3-16 into the girt · same
Stairwell trimmer, front and rear of the opening23 × 10142A3-16 into the girt · same
Spine post28 × 8279 1/8A6-22 foot on the spine sill · A6-02 head tenon into the spine plate
Wall plate24 1/2 × 6614A6-02 on the post heads · same; scarfed A2-16 over a post
Spine plate34 1/2 × 650 – 297A6-02 on the spine post heads · A6-05 into the gable mid post, or against a chimney
Common rafter (33.7°, 8/12)373 × 8316 5/8A6-20 seat on the plate, 12 in tail · A6-44 foot lapped to the joist beside it, pegged · A6-42 mortised, tenoned and draw-pinned at the peak, notched for the ridge piece
Collar (none on the two gable pairs — the gable studs stiffen them)153 × 6212A6-12 to the rafter · same
Common rafter, headed off at a roof opening133 × 8275 1/8 – 316 5/8A6-20 seat on the plate, 12 in tail · A6-44 foot lapped to the joist beside it, pegged · A3-16 into the roof header
Roof header at a chimney43 × 873 3/8 – 98 7/8A2-08 tusk tenon into the trimmer rafter · same
Roof header at a dormer63 × 847 7/8A2-08 tusk tenon into the trimmer rafter · same
Ridge piece13 × 373 1/4A6-42 in the notch over the end pair · against the chimney
Ridge piece13 × 3348against the chimney · against the chimney
Ridge piece13 × 391 3/4against the chimney · same
Garret floor joist, beside a rafter383 1/2 × 8 1/2247on the wall plate · A6-44 the rafter's foot lapped into its side, pegged · lapped on the spine plate
Garret tail joist at a chimney103 1/2 × 8 1/2212 1/2 – 224 1/2on the plate · A3-16 into the header
Garret chimney header46 × 8 1/272 7/8 – 98 3/8A2-08 tusk tenon into the joist · same
Dormer post, on a trimmer rafter63 × 482 1/2A6-43 birdsmouthed onto the trimmer rafter · A2-07 into the front plate
Dormer front plate34 × 353 7/8A6-02 on the post · same
Dormer side plate63 × 3119 3/4A6-43 lapped on the front plate · onto the trimmer rafter
Dormer cheek stud543 × 313 – 76 7/8A6-43 birdsmouthed onto the trimmer rafter · A2-07 into the side plate
Dormer rough sill34 × 347 7/8A2-07 into the post · same
Dormer rafter303 × 842 3/8A6-20 bird's mouth seated on the side plate · A6-19 at the peak
Kitchen sill, front wall18 1/2 × 6 1/2204 1/2A6-17 corner · A6-17 corner
Kitchen sill, rear wall18 1/2 × 6 1/2204 1/2A6-17 corner · A6-17 corner
Kitchen sill, gable end28 1/2 × 6 1/2141 1/2A6-17 corner · A6-17 corner
Kitchen floor joist, gable sill to gable sill23 × 10196A4-14 on the inner half of the sill · same
Kitchen floor chimney header16 × 10126 5/8A2-08 tusk tenon into the joist · same
Kitchen floor tail joist at a chimney83 × 10143 3/4A4-14 on the inner half of the sill · A3-16 dovetail into the header
Kitchen wall post, front and rear walls (corner and bent)48 × 8127 3/8A6-22 foot on the sill · A6-02 head tenon into the plate; A6-05 girts housed and pegged
Kitchen wall stud213 × 4127 3/8A2-07 stub tenon into the sill · A2-07 stub tenon into the plate or top girt
Kitchen gable top girt at the plate line, W gable14 1/2 × 6142 1/2A6-05 into the corner post · A6-05 into the corner post
Gable stud above the plate line, top cut to 10/12123 × 410 – 57 7/8A2-07 stub tenon into the top girt · birdsmouthed under the end rafter
Kitchen gable top girt at the plate line, E gable14 1/2 × 6142 1/2A6-05 into the corner post · A6-05 into the corner post
Kitchen wall plate24 1/2 × 6204 1/2A6-02 on the post heads · same
Kitchen common rafter (39.8°, 10/12)163 × 8125 1/2A6-20 seat on the plate, 12 in tail · A6-19 at the ridge
Kitchen common rafter, headed off at a roof opening23 × 888 5/8 – 90 5/8A6-20 seat on the plate, 12 in tail · A3-16 into the roof header
Kitchen collar (none on the two gable pairs — the gable studs stiffen them)63 × 673 5/8A6-12 to the rafter · same
Kitchen roof header at a chimney23 × 847 3/8A2-08 tusk tenon into the trimmer rafter · same
Office sill, front wall18 1/2 × 6 1/2204A6-17 corner · A6-17 corner
Office sill, rear wall18 1/2 × 6 1/2204A6-17 corner · A6-17 corner
Office sill, gable end28 1/2 × 6 1/2129A6-17 corner · A6-17 corner
Office floor joist, gable sill to gable sill43 × 10195 1/2A4-14 on the inner half of the sill · same
Office floor chimney header16 × 1081 5/8A2-08 tusk tenon into the joist · same
Office floor tail joist at a chimney53 × 10163 3/4A4-14 on the inner half of the sill · A3-16 dovetail into the header
Office wall post, front and rear walls (corner and bent)48 × 8129 1/4A6-22 foot on the sill · A6-02 head tenon into the plate; A6-05 girts housed and pegged
Office wall stud193 × 4129 1/4A2-07 stub tenon into the sill · A2-07 stub tenon into the plate or top girt
Office gable top girt at the plate line, W gable14 1/2 × 6130A6-05 into the corner post · A6-05 into the corner post
Gable stud above the plate line, top cut to 9/12103 × 416 1/8 – 51 3/4A2-07 stub tenon into the top girt · birdsmouthed under the end rafter
Office gable top girt at the plate line, E gable14 1/2 × 6130A6-05 into the corner post · A6-05 into the corner post
Office wall plate24 1/2 × 6204A6-02 on the post heads · same
Office common rafter (36.9°, 9/12)163 × 8112 1/4A6-20 seat on the plate, 12 in tail · A6-19 at the ridge
Office collar (none on the two gable pairs — the gable studs stiffen them)63 × 669 3/8A6-12 to the rafter · same
Office common rafter, headed off at a roof opening23 × 888 1/2A6-20 seat on the plate, 12 in tail · A3-16 into the roof header
Office roof header at a chimney23 × 847 1/4A2-08 tusk tenon into the trimmer rafter · same