← Pennsylvania bank barn

Pennsylvania bank barn — 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 × 9194513bent post, north wall
9 × 9184486bent post, south (forebay) wall
9 × 9168864interior post (drive-floor aisle)
8 × 10216840girder, lengthwise
8 × 101981,013mow girt, upper (12.2 ft), south · mow girt, lower (6.7 ft), south
8 × 1017121,360tie beam, full width
8 × 10158800mow girt, upper (12.2 ft), north · mow girt, lower (6.7 ft), north
9 × 8236828sill, south wall · sill, north wall
9 × 8224528sill, gable end
8 × 8236736wall plate
8 × 894192girder post, lower level
9 × 6233310forebay sill
6 × 8236552purlin plate
6 × 8224352wall girt (12.2 ft), bay 1, between wall posts · wall girt (12.2 ft), bay 3, between wall posts
6 × 8192152wall girt (12.2 ft), bay 2, between wall posts
6 × 698216purlin post
4 × 6214168collar between purlin posts
4 × 528421,960common rafter (26.0°, 5.9/12)
4 × 4138139long brace, tie to purlin post head (38°)
4 × 45853inner brace, purlin post to collar
4 × 44843knee brace, wall post to tie

12,106 board feet of green timber in 163 pieces.

Logs: 20 × 10 in, 46 1/4 ft — log joist, hewn flat on top, hewn flat on top.

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

42 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: 285 of dry oak, 1 in by 11 in, estimated joint by joint — order a tenth over.

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, south wall19 × 8726A6-17 corner · A6-17 corner; scarfed A2-16 — no stick is 60 ft
Sill, north wall19 × 8726A6-17 corner · A6-17 corner; scarfed A2-16
Sill, gable end29 × 8465A6-17 corner · A6-17 corner
Forebay sill19 × 6726A6-31 housed on the log-joist ends · same; scarfed A2-16
Girder, lengthwise28 × 10678pocket in the gable wall (A6-22 pier case) · same; on 8x8 posts at the interior bents; scarfed A2-16
Girder post, lower level48 × 886 3/4A6-22 foot on a stone pad · head under the girder, A6-02 tenon
Log joist, hewn flat on top2010 in log555A6-29 notch over the south sill and the forebay sill on its end (A6-31) · A6-29 notches over both girders and the north sill
Bent post, south (forebay) wall49 × 9197 7/8A6-22 foot on the sill · A6-02 head tenon into the plate; A6-05 tie and girts housed and double-pegged (sheet 13)
Bent post, north wall49 × 9207 1/8A6-22 foot on the sill · A6-02 head tenon into the plate; A6-05 tie and girts housed and double-pegged (sheet 13)
Interior post (drive-floor aisle)89 × 9179 1/4A6-22 foot on the girder / end sill · A6-02 head tenon into the tie; A6-05 girts
Tie beam, full width48 × 10537A6-05 housed tenon into the wall post, 2 pegs · same; purlin posts A6-30 on top; knee braces A6-03 below
Mow girt, upper (12.2 ft), south48 × 10210A6-05 into the wall post · A6-05 into the interior post
Mow girt, upper (12.2 ft), north48 × 10159A6-05 into the interior post · A6-05 into the wall post
Mow girt, lower (6.7 ft), south48 × 10210A6-05 · A6-05
Mow girt, lower (6.7 ft), north48 × 10159A6-05 · A6-05
Purlin post86 × 692 1/4A6-30 foot tenon into the tie · A6-30 head under the purlin plate; collar and braces from the sides
Collar between purlin posts44 × 6238 1/4A6-05 tenon into the purlin post · same
Knee brace, wall post to tie84 × 432 1/4A6-03 45° foot on the post · A6-03 head under the tie
Long brace, tie to purlin post head (38°)84 × 4134 1/8A6-03 foot on the tie, 3'-5" in from the post · A6-30 head on the purlin post outer face
Inner brace, purlin post to collar84 × 446 3/8A6-03 foot on the purlin post inner face · A6-03 head under the collar
Wall plate28 × 8726A6-02 on the post heads · same; scarfed A2-16 over a post
Purlin plate26 × 8726A6-30 on the purlin post heads · same; scarfed A2-16 over a post
Wall girt (12.2 ft), bay 1, between wall posts26 × 8246A6-05 into the wall post · same
Wall girt (12.2 ft), bay 2, between wall posts26 × 8208A6-05 into the wall post · same
Wall girt (12.2 ft), bay 3, between wall posts26 × 8245A6-05 into the wall post · same
Common rafter (26.0°, 5.9/12)424 × 5324 5/8A6-20 seat on the wall plate, 12 in tail · A6-19 tongue-and-fork at the ridge; bears over the purlin plate (A6-30)