← Foster-Armstrong House

Foster-Armstrong House — 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
9 × 10261195first-floor girder (summer), lengthwise
8 × 10158800gable end girt, west gable · gable end girt, east gable · cross girt at a bent
8 × 8224469sill, front wall · sill, rear wall
8 × 819101,013wall post, front and rear walls (corner and bent) · gable mid post
8 × 8182192spine post
8 × 8174363sill, gable end
8 × 8164341wall girt, bay 1 (front and rear) · wall girt, bay 3 (front and rear)
8 × 89296wall girt, bay 2 (front and rear)
8 × 87275cellar post under the girder
6 × 917221,683garret floor joist, beside a rafter
6 × 9154270garret tail joist at a chimney
6 × 911150stairwell header
6 × 974126garret chimney header
6 × 95490chimney header
6 × 94472first-floor chimney header
6 × 8222176porch beam
6 × 6226396wall plate · porch sill on the piers
6 × 6182108spine plate
6 × 6154180gable top girt at the plate line, west gable · gable top girt at the plate line, east gable
6 × 6104120porch post
6 × 62212spine plate
5 × 7224257purlin plate under the break
6 × 5 1/27477tie header at a chimney
3 × 922299porch roof ledger
3 × 916822,952first-floor joist, sill to girder · first-floor chimney trimmer · floor joist, girt to girt · chimney trimmer, either side of the stack
3 × 9148252first-floor tail joist at a chimney
3 × 9126162chimney tail joist, girt to header
3 × 9914284hall joist between the cross girts · stairwell trimmer, front and rear of the opening
3 × 95668stairwell tail joist, cross girt to header
3 × 92627chimney tail joist, girt to header
4 × 6188288x brace in the knee wall, halved at the crossing
4 × 611488x brace in the knee wall, halved at the crossing
4 × 65110opening header
4 × 641296opening header
4 × 63424opening header
4 × 51628747lower rafter (36.9°, 9/12)
4 × 5728327upper rafter (13.6°, 2.9/12) · roof header at a chimney
4 × 55433upper rafter, headed off at a roof opening
3 × 622266porch floor ledger
3 × 6924324porch joist
2 × 91718459garret floor joist, between the heavy ones
2 × 9156135garret tail joist at a chimney
3 × 5 1/21311197tie beam at the break, beside a rafter pair
3 × 5 1/25428tie beam, headed off at a chimney
3 × 5914158porch rafter (10.2°)
2 × 77865purlin post, knee wall
3 × 41134374wall stud, front and rear, first story · opening jamb stud, full story
3 × 41034340gable stud, first story · opening jamb stud, full story · gable stud above the plate line, top cut to 9/12 or level under the curb tie · opening jamb stud, gable (to the rake)
3 × 4968612wall 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 9/12 or level under the curb tie
3 × 48648opening jamb stud, gable (to the rake) · gable stud above the plate line, top cut to 9/12 or level under the curb tie
3 × 47214gable stud above the plate line, top cut to 9/12 or level under the curb tie
3 × 46424gable stud above the plate line, top cut to 9/12 or level under the curb tie
3 × 451995cripple stud, under a rough sill or over a header · window rough sill · gable stud above the plate line, top cut to 9/12 or level under the curb tie
3 × 4437148window rough sill · cripple stud, under a rough sill or over a header · gable stud above the plate line, top cut to 9/12 or level under the curb tie
3 × 431030cripple stud, under a rough sill or over a header · window rough sill · gable stud above the plate line, top cut to 9/12 or level under the curb tie
3 × 4236cripple stud, under a rough sill or over a header

15,738 board feet of green timber in 621 pieces.

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

Pegs: 224 of dry oak, 1 in by 11 in, estimated joint by joint — order a tenth over. Keys: 21 dry oak keys for the tusk tenons.

Boards: floors about 3,642 sq ft at 1 in thick (≈3,642 board feet); roof boards about 1,853 sq ft at 1 in (≈1,853 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
Cellar post under the girder28 × 870A6-22 foot on a stone pad · head under the girder, A6-02 tenon
Sill, front wall18 × 8482A6-17 corner · A6-17 corner; scarfed A2-16
Sill, rear wall18 × 8482A6-17 corner · A6-17 corner; scarfed A2-16
Sill, gable end28 × 8348A6-17 corner · A6-17 corner
First-floor girder (summer), lengthwise19 × 10300 1/8on the chimney base, vaulted, as sheet 4 draws it (its vaults not modelled), 8 in onto it · on the chimney base, vaulted, as sheet 4 draws it (its vaults not modelled), 8 in onto it
First-floor joist, sill to girder383 × 9173 1/2A4-14 cogged over the inner half of the sill · A3-16 dovetail into the girder
First-floor chimney trimmer83 × 9173 1/2A4-14 on the sill · A3-16 dovetail into the girder
First-floor chimney header46 × 936A2-08 tusk tenon into the trimmer · same
First-floor tail joist at a chimney83 × 9148A4-14 on the sill or the spine · A3-16 dovetail into the header
Wall post, front and rear walls (corner and bent)88 × 8206 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 × 8179 1/8A6-05 housed tenon into the post, 2 pegs · same
Wall girt, bay 2 (front and rear)28 × 890A6-05 housed tenon into the post, 2 pegs · same
Wall girt, bay 3 (front and rear)28 × 8180 7/8A6-05 housed tenon into the post, 2 pegs · same
Wall stud, front and rear, first story143 × 4111A2-07 stub tenon into the sill · A2-07 stub tenon into the girt
Opening jamb stud, full story503 × 487 1/8 – 111A2-07 stub tenon · A2-07 stub tenon
Opening header174 × 621 – 39A2-07 into the jamb · same
Window rough sill273 × 421 – 46A2-07 into the jamb · same
Cripple stud, under a rough sill or over a header343 × 48 1/2 – 46 1/2A2-07 stub tenon · butts the rough sill or header
Wall stud, front and rear, second story163 × 487 1/8A2-07 stub tenon into the girt · A2-07 stub tenon into the plate or top girt
Gable mid post28 × 8212 1/8A6-22 foot on the gable sill · A6-05 end girts and the top girts
Gable end girt, west gable28 × 10170A6-05 into the corner post · A6-05 into the mid post
Gable top girt at the plate line, west gable26 × 6170A6-05 into the corner post · A6-05 into the mid post
Gable stud, first story223 × 4109A2-07 stub tenon into the sill · A2-07 stub tenon into the girt
Gable stud, second story223 × 487 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 × 483 3/4 – 98 1/8A2-07 stub tenon into the top girt · cut to the rake under the end rafter
Gable stud above the plate line, top cut to 9/12 or level under the curb tie243 × 417 – 102 1/2A2-07 stub tenon into the top girt · under the end lower rafter or the curb tie
Gable end girt, east gable28 × 10170A6-05 into the corner post · A6-05 into the mid post
Gable top girt at the plate line, east gable26 × 6170A6-05 into the corner post · A6-05 into the mid post
Cross girt at a bent48 × 10170A6-05 into the wall post · A6-05 into the spine post; A6-32 summers, A3-16 joists
Floor joist, girt to girt323 × 9179 1/8 – 180 7/8A3-16 into the girt · same
Chimney trimmer, either side of the stack43 × 9179 1/8 – 180 7/8A3-16 into the girt · same
Chimney header46 × 948A2-08 tusk tenon into the trimmer · same
Chimney tail joist, girt to header123 × 96 1/2 – 126 3/8A3-16 into the girt · A3-16 dovetail into the header
Hall joist between the cross girts123 × 990A3-16 into the girt · same
Stairwell trimmer, front and rear of the opening23 × 990A3-16 into the girt · same
Stairwell header16 × 9112A2-08 tusk tenon into the trimmer · same
Stairwell tail joist, cross girt to header63 × 948A3-16 into the girt · A3-16 dovetail into the header
Spine post28 × 8197 1/8A6-22 foot on the spine sill · A6-02 head tenon into the spine plate
Wall plate26 × 6482A6-02 on the post heads · same; scarfed A2-16 over a post
Spine plate36 × 612 1/2 – 369A6-02 on the spine post heads · A6-05 into the gable mid post, or against a chimney
Lower rafter (36.9°, 9/12)284 × 5172 3/4A6-20 seat on the plate, 12 in tail · A6-44 foot lapped to the joist beside it, pegged · A6-34 notched onto the purlin, head cut to the break plane
Upper rafter (13.6°, 2.9/12)244 × 564 3/4A6-34 butted to the lower rafter on the break plane · A6-19 at the ridge
Upper rafter, headed off at a roof opening44 × 546 1/4A6-34 butted to the lower rafter on the break plane · A3-16 into the roof header
Roof header at a chimney44 × 569 1/2A2-08 tusk tenon into the trimmer rafter · same
Tie beam at the break, beside a rafter pair113 × 5 1/2134 1/4A6-12 pegged to the rafter, on the purlin · same
Tie beam, headed off at a chimney43 × 5 1/249 1/8A6-12 pegged to the rafter · A3-16 into the header
Tie header at a chimney46 × 5 1/265 – 70 1/2A2-08 tusk tenon into the tie beam · same
Purlin plate under the break25 × 7482A6-30 on the post heads · same; scarfed A2-16 over a post
Purlin post, knee wall82 × 773 1/4A6-30 stub tenon into the attic floor sill · A6-30 tenon into the purlin
X brace in the knee wall, halved at the crossing124 × 6120 3/4 – 199 3/4A6-03 foot on the post · A6-03 head under the purlin; A2-04 halved across its mate
Garret floor joist, beside a rafter226 × 9182on the wall plate · A6-44 the rafter's foot lapped into its side, pegged · lapped on the spine plate
Garret floor joist, between the heavy ones182 × 9182on the wall plate · lapped on the spine plate
Garret tail joist at a chimney62 × 9164on the plate · A3-16 into the header
Garret tail joist at a chimney46 × 9164on the plate · A3-16 into the header
Garret chimney header46 × 963 1/2 – 67 1/2A2-08 tusk tenon into the joist · same
Porch post46 × 6105 1/8A6-22 stub tenon into the porch sill · A6-02 tenon into the porch beam
Porch sill on the piers16 × 6482on stone piers under the posts · scarfed A2-16
Porch floor ledger13 × 6482F5-12 lag-bolted to the front sill · same
Porch joist243 × 692A4-14 cogged over the porch sill · on the floor ledger (A2-23), spiked
Porch beam16 × 8482A6-02 on the post heads · same; scarfed A2-16 over a post
Porch roof ledger13 × 9482F5-12 lag-bolted to each wall post · same
Porch rafter (10.2°)143 × 596 3/8A6-20 bird's mouth seated on the porch beam · hung on the roof ledger (F5-12)