Best for
- Concrete-mounted posts and columns
- Equipment and structural steel base connections
- Standard four-hole anchor layouts
Concrete Accessories
A36 Concrete Base Plates
Standard 1/4-inch A36 steel base plates with four anchor holes. Choose the plate size shown on your approved drawing. Custom thicknesses, dimensions, coatings, and hole layouts are available by quote.
$6.99
Price per individual piece
Quantity (pieces)
Ordering several sizes? Use quick order →What one quantity includes.One quantity is one A36 steel base plate in the selected size.Anchor bolts are separate. Match the plate thickness, outside dimensions, holes, and bolt centers to the approved drawing.This page adds only the selected pieces. Nothing else is automatically included unless the selected option says so.
Pickup or freight.Availability and steel pricing can change. We confirm pickup or delivery timing after the order is received.Pickup is Monday–Friday, 8:00 a.m.–4:30 p.m. Pay online and wait for the ready-for-pickup email before arriving.For freight, send the delivery address at checkout. We email the exact delivered total and a secure payment link; you review it before paying.
Specifications
Match the approved job requirements
- ASTM A36 steel
- 1/4 in plate thickness
- Four 9/16 in anchor holes for 1/2 in anchors
- Hole centers: 4 in on the 6 x 6 plate; 6 in on the 8 x 8 plate; 10 in on the 12 x 12 plate
- Sold as one individual plate; anchor bolts are ordered separately
- Confirm plate size, thickness, hole layout, finish, and loads against the approved project drawing before ordering
- Custom plate sizes and hole patterns are available by quote
Plan before you buy
Make sure this is the right piece.
Before ordering
- Check the approved plate dimensions and thickness
- Confirm the anchor diameter and hole centers
- Confirm plain, painted, or galvanized finish requirements
Field notes
- Sold by individual plate
- Standard listing uses four 9/16-inch holes
- Custom plate sizes and hole patterns require a quote
Sizes and per-piece prices
Compare every available size.
Selecting a size link opens this page with that exact option ready. Availability and fulfillment timing are confirmed after the order is received.
| Size | SKU | Price each | Choose |
|---|---|---|---|
| 6 x 6 x 1/4 in — four 9/16 in holes | OMF-PLATE-06 | $6.99 | Select size |
| 8 x 8 x 1/4 in — four 9/16 in holes | OMF-PLATE-08 | $8.99 | Select size |
| 12 x 12 x 1/4 in — four 9/16 in holes | OMF-PLATE-12 | $21.99 | Select size |
Unsure about fit or quantity?
Talk to the people who make it.
Call with the approved drawing, bar schedule, quantities, finish requirements, and delivery ZIP code. We can help review the order before you pay.
Complete the system
Related forms and accessories
Straight Forms
Straight Flat Work Concrete Form
Rigid 10-foot steel forms for accurate, repeatable straight runs.
Radius Forms
Flexible Flatwork Concrete Form
Flexible 10-foot forms for smooth curves and controlled radiuses.
