previous
  • 9 Concrete Countertops Ideas
    9 Concrete Countertops Ideas
  • Magazine Departments
    Magazine Departments
  • Remodeling Articles
    Remodeling Articles
  • Design Inspiration
    Design Inspiration
  • Basement Remodeling Tips
    Basement Remodeling Tips
  • Pro Tool Rental. Learn More.
    Pro Tool Rental. Learn More.
  • Read FHB on Your iPad
    Read FHB on Your iPad
  • Tips & Techniques for Painting
    Tips & Techniques for Painting
  • 7 Smart Kitchen Solutions
    7 Smart Kitchen Solutions
  • Classic Cabinets
    Classic Cabinets
  • Master Carpenter Videos
    Master Carpenter Videos
  • All about Roofing
    All about Roofing
  • 7 Trim Carpentry Secrets
    7 Trim Carpentry Secrets
  • Clever daily tip in your inbox
    Clever daily tip in your inbox
  • Custom Flooring Inspiration
    Custom Flooring Inspiration
  • Hot Water Now
    Hot Water Now
  • Video Series: Tile a Bathroom
    Video Series: Tile a Bathroom
  • Video: Install a Fence
    Video: Install a Fence
  • Radiant Heat Comparison
    Radiant Heat Comparison
  • 7 Small Bathroom Layouts
    7 Small Bathroom Layouts
  • Energy-Smart Details
    Energy-Smart Details
next
Pin It

Gypboard concrete forms

We recently did a foundation job in very crumbly, sandy soil. The first task was to set 27 pier blocks in pier holes that were 18 in, on a side and 12 in. deep. But by the time we had dug down a foot, we often had a hole that was more than 2 ft. across at the top and growing. Faced with filling these craters with concrete, we calculated that we would waste more than a cubic yard.

Instead of ordering the extra concrete, we transformed four sheets of gypboard into form boxes. We cut the sheets into 6-ft. lengths, and scored them along their length at 18 in. o.c., leaving the face paper intact. Perpendicular to these scored lines, we cut the board into 12-in. wide strips. These strips were then folded into square boxes, placed in the oversized holes and backfilled. The forms not only saved concrete, but also gave us an accurate way to calculate our ready-mix order.