Belen and I made a crate with slats using lumber and finished it with careful sanding and red stain.
- We first cut 10 x 14.5″ long pieces of 1×4 lumber, 6 x 12″ long pieces of 1×4 lumber and 4 x 11″ long pieces of 2×2 lumber.
- We then used countersunk and piloted screws to attach two pieces of 14.5″ and 12″ lumber to create 3 rectangular levels of the crate. A failure in this step was that the countersinking was overestimated a few times and the screwed went in too deep. This was solved by attaching a piece of tape to the drill bit so that the depth is more uniform.
- To one of the rectangular levels, 4 pieces of 14.5″ lumber were screwed on to create the base of the crate. This rectangular level is now the lowest level of the crate.
- To this level and the base, 4 pieces of 2×2 lumber are screwed on to the corners vertically to support the rest of the levels. The second level was then screwed onto the vertical lumbers using a 1×4 lumber to determine the size of the slat.
- Finally, the third level was screwed on and the 1×4 lumber was again used to determine the slat size so that the slats are uniform. Then, the whole crate was sanded with a 100 grit, followed by the 240 grit sand paper. A hurdle in this step was that some of the pieces of wood had large pieces chipped off which were not smoothening off using a 100 grit sander. This was fixed by using a 60 grit and 80 grit sander to remove larger amounts of wood and then smoothening with a 100 grit.
- Lastly, the crate was stained red.
Cost Estimates
- Philips Flat Head Wood Screws ($0.060/screw) x72 = $4.32
- 1×4 Lumber ($0.0475/inch) x 217 in = $10.31
- 2×2 Lumber ($0.037/inch) x 44 in = $1.63
- Miter Saw Power ($0.000133/W-hr)(840 W)(0.6 hr) = $0.07
- Drill Power ($0.000133/W-hr)(63 W)(1.5 hr) = $0.01
- Orbital Sander ($0.000133/W-hr)(600 W)(2 hr) = $0.16
- Router ($0.000133/W-hr)(600 W)(0.5 hr) = $0.04
- Stain consumed (0.15 ml/in^2)(2000 in^2)($0.02/mL) = $5.39
- Woodworking Labor Cost ($24.81/hr)(8) = $198.48
Total = $220.41