Intro: Cheapest Sturdy Garage Wall Shelf Over 300lb Capacity
Here is youtube video for further explanation.
The idea was to build a stronger shelf, than the standard wire shelves you can buy at the store using basic tools with a cost savings of over 50%. This shelf is not for everyone, but I have accomplished my goal. The shelf can be modified to hold more or less weight.
Step 1: Completed Shelf
Image of completed shelf
Step 2: Cost Comparison
Money saved can be used for additional tools, and the experience gained used on future projects.
Step 3: Material List
List of Materials
Step 4: Cross-sectional View of Shelf & Measurements
Step 5: Zoomed in on Important Measurement
Step 6: Build Steps
Step 7: Draw Horizontal Line Using Level at Shelf Location
Step 8: Mark Studs and Diagonal Support Locations
Draw additional line at your diagonal support locations 16-5/16" below first horizontal line your drew.
Step 9: Make All Your Wood Cuts.
Glue furring strips together, make all cuts, predrill furring strips, and set your screws protruding 1/4" from furring strip.
Step 10: Make Pilot Holes
Take furring strips w/ set screws, number them where they will go on wall. Align top of wood to horizontal line and tap with hammer to create a hole where you will pre-drill. Do this with remaining furring strips.
Step 11: Fasten All Furring Strips to Wall
Step 12: Attach Front Support Lip to Plywood
I glued,clamped, screwed, then nailed them together. Let sit for a day. Glue is optional for a bit more strength.
Step 13: Assemble Parts
Set in diagonals, they should be able to stand alone. Set top. Nail in place w/ nail gun. Add remaining screws.
Step 14: Load Test
That is 180lbs hanging from the center of the shelf. I wouldn't dare try that with a standard wire shelf.
Step 15: Almost Forgot End Supports
Clamp, nail, and screw end support pieces into place.