Geni
Countersink bit
Published: February 5, 2026
Video Description
Get Free Tote Storage Build Plans: https://geni.us/YOKFk9
Materials and Tools Used
OSB (5/8", $21/sheet): https://geni.us/QRIL
Sanded Plywood (optional finish): https://geni.us/tGeHrI
Countersink bit: https://geni.us/t6Vth
Laser level: https://geni.us/qERYBp
In this video, we’re tackling shed walls without drywall! If you’ve followed our 12x16 modern shed build, you know we’ve done insulation, and now it’s time for the interior walls. Forget drywall taping and sanding—I’ll show you an easier, durable, and budget-friendly alternative. We’ll install OSB for structure and discuss adding a sanded plywood finish for a polished look. I’ll walk you through every step, from cutting for electrical boxes to getting a pro result. Let me know in the comments—would you paint the OSB or add that plywood layer?
Chapters:
0:00 Intro – Why Not Drywall?
1:47 First Sheet Install (No Electrical Cutout)
2:36 Countersinking and Screws
3:13 Cutting for Electrical Boxes
5:40 Complex Sheet – Door & Switch Cutouts
7:20 Final Thoughts – OSB vs Plywood Finish
Need some help building a shed? Checkout our Free Shed Building Community: https://www.skool.com/everydayshed/about