Concrete form quantity planner
Turn run length into a starting piece count.
A concrete run needs a form line on both sides. Enter the run length once; the calculator counts both sides. Calculate each form height separately and keep straight and curved runs separate.
Planning calculator
Estimate 10 ft sections.
Enter the length of the concrete run once. The calculator automatically counts a form line on both sides.
Example: a 100 ft straight run starts with 20 forms—10 per side. Before ordering, review corners, connections, odd-length adjustments, waste, tight radiuses, and field conditions. For pads, closed shapes, or mixed layouts, call us to check the list before you pay.
Step 1: measure the run once
Measure the length of the concrete run, not the two form lines separately. The calculator automatically counts one form line on each side. Measure a curved run along the curve rather than using the straight-line distance between its ends.
Step 2: separate straight and curved run length
Straight forms and flexible forms are different products. Keep the run lengths separate, and repeat the calculation for every form height on the job.
Step 3: round up each side, then double it
Ohio Metal Forms straight and flexible sections are 10 ft pieces. Divide the run length by 10, round up to cover one side, then multiply by two for both sides.
Step 4: count corners and adjustments
Count every 90-degree turn that needs a matching corner. Identify odd-length gaps where a filler may help. The exact arrangement can change the final quantity, so review the layout before purchasing.
Step 5: allow for field reality
Connections, overlap, damage allowance, access, layout changes, different inside and outside curve lengths, tight curves, and re-use sequencing can affect the number of pieces needed. The calculator deliberately does not guess those details. For pads, closed shapes, or mixed layouts, call us to check the list.
Information to have when you call
- Form height for each part of the job
- Total straight footage at each height
- Total curved footage and planned radius
- Number of 90-degree corners
- Odd-length gaps or closeouts
- Pickup or freight-delivery ZIP code
Planning estimate ready?
Build the order on one screen.
Quick Order shows every standard height and per-piece price. Call if you want the list reviewed first.