OSB vs Plywood: Which Should You Choose for Your Build?

OSB vs Plywood: Which Should You Choose for Your Build? When choosing between OSB (Oriented Strand Board) and plywood, your decision impacts cost, durability, and moisture performance. Here's a quick breakdown: - OSB: Cheaper (saves $700–$900 on a typical home), stronger in shear, and more resource-efficient. However, it holds onto moisture longer, causing permanent swelling, especially at edges. - Plywood: Costs more but dries faster after getting wet and resists permanent swelling. It's stiffer (10% more than OSB), better for subfloors, and preferred for tile substrates. Quick Comparison | Feature | OSB | Plywood | |---| --- |---| | Cost (4×8 sheet) | $15–$43 | $36–$80 | | Moisture Resistance | Slow drying; edge swelling | Dries fast; no edge issues | | Stiffness | Lower | 10% higher | | Weight (3/4" sheet) | 78 lbs | 67 lbs | | Best For | Walls, roofs | Tile substrates, wet areas | Key Takeaway Use OSB for walls and roofs to save money, but opt for plywood in moisture-prone areas or...