Heavy Duty Plastic U Shim Set For Windows And Doors, 3 By 4 Inch Size, Adjustable Thickness From One Sixteenth To One Quarter Inch, Leveling Shims For Precise Installations, Stack Shim BFSEALS 100 Pack, Made In USA, Free Fast Shipping
✔️ Adjustable 1/16 to 1/4 inch thickness, 3x4 inch size, USA-made
These stackable, heavy-duty plastic shims provide a dependable solution for aligning window and door frames, spacings, and mounting surfaces. Ideal for builders, installers, and remodelers seeking reusable, consistent gaps.
✅ Heat-sealed into 1-inch stacks, 16 shims per stack for easy separation
✅ Thickness adjustable from 1/16 to 1/4 inch for precise leveling
✅ 3x4 inch size with strong compressive strength for heavy-duty use
✅ Color-coded options: blue, red, black for quick identification
✅ Made in USA from durable high-quality plastic
💡 What is a stackable plastic leveling shim used for in window and door installations?
These handy shims help builders quickly level frames and maintain consistent gaps during installation.
- Improves frame alignment and levelness for precise installations
- Lightweight, resistant to warping compared to wood shims
- Stackable design speeds setup and ensures repeatable spacing