Framed floor on concrete piers · May 2026
| Item | Spec | Qty |
|---|---|---|
| Concrete Piers | ||
| QUIK-TUBE 12" × 48" form | 12" dia., 4' length — fits hole exactly, no cutting | 12 |
| 80 lb. concrete mix | ~4,000 PSI; 4 bags/pier | 48 bags |
| ABA ZMAX post base (4×4) | ZMAX galvanized, ACQ compatible; set in wet concrete | 12 |
| 50 lb. all-purpose gravel | Pier base drainage; ~1 bag/pier | 12 bags |
| 12" auger rental | 4-hr rental — sufficient for 12 piers at 4' depth | 1 |
| Beams — 2×8 PT UC4B Ground Contact | ||
| 2×8×8 PT — long side beams | Doubled 2-ply; 3 boards/ply × 2 plies × 2 sides; Ply 1 joints at 8' & 16', Ply 2 at 4' & 20' | 12 boards |
| 2×8×8 PT — end caps | Single ply; cut to 6' 0" | 2 boards |
| 16d galvanized box nails — 5 lb. | 3½", 10-gauge; beam lamination & framing; 2 rows staggered every 16" OC | 1 box |
| Floor Joists | ||
| 2×8×12 PT — joists @ 16" OC | #1 Ground Contact; cut to 6' — 2 joists per board, zero waste; 16 interior joists | 8 boards |
| Joist hanger for 2×8 | LUS28 or equivalent; 18-gauge ZMAX galvanized; 2 per joist | 32 |
| SD connector screw #9 × 1½" (100-pk) | Strong-Drive; 1/4-hex drive; ~8 screws/hanger | 3 packs |
| Decking | ||
| 3/4" T&G PT plywood 4×8 | Ground Contact; PS 1-09; tongue-and-groove edges; 132 sq ft + waste | 5 sheets |
| Construction adhesive 10 oz. | PL Premium or equivalent; applied to all joist tops before laying sheets | 3 tubes |
| #9 × 3" construction screws — 1 lb. box | Star drive, coarse thread; ~65/box; 6" OC at edges, 12" OC in field | 5 boxes |
| Ground Prep | ||
| Landscape fabric 4×50 ft. | Heavy PP woven weed barrier; 1 roll covers 200 sq ft | 1 roll |
| Cut-N-Treat wood preservative — 1 qt. | Apply to all field-cut PT lumber ends immediately after cutting | 1 |