Embed Plate Takeoff: Counting Embeds Right
An embed plate takeoff means finding every steel plate cast into concrete, counting it by mark, and pricing the plate, headed studs or rebar anchors, welding and finish as one assembly. Embeds rarely live on the steel framing plans. They hide on concrete sheets, architectural details and schedules, so the hard part is finding them, not pricing them.
Miss a dozen embeds on a tilt-up or parking structure and you've lost more than the steel. You've lost the shop time, the galvanizing lot and a delivery that has to beat the concrete pour. Here's how to find them, count them and draw a clear scope line.
What counts as an embed plate?
An embed (also called an embedded plate, cast-in plate or weld plate) is a steel plate set into concrete before or during the pour so that something can be welded or bolted to it later. A typical embed has:
- A plate, often 3/8" to 3/4" thick, with its face flush with the concrete surface.
- Anchors welded to the back: headed shear studs, deformed bar anchors or bent rebar.
- Sometimes an angle or bent plate instead of a flat plate, for slab edges and corners.
- A finish, often hot-dip galvanized for exterior or parking work, or primed.
Common uses:
| Embed type | Where you see it | What attaches to it |
|---|---|---|
| Wall embed | Concrete or tilt-up walls | Steel beams, ledger angles, canopy framing |
| Slab edge embed | Slab edges, parking decks | Edge angle, guardrail posts, curtain wall clips |
| Column face embed | Concrete columns | Steel beams framing in |
| Stair embed | Landings and stringers at concrete | Stair stringers, landing framing |
| Pour stop / edge angle | Slab-on-deck edges | Sometimes cast-in with anchors |
| Equipment embed | Mechanical pads, roof slabs | Equipment frames, supports |
Embeds overlap with anchor rods, which are also cast in. If you need a refresher on anchor rods and base plates, see our base plate and anchor bolt takeoff guide.
Where do embeds hide on a drawing set?
Embeds sit at the border between concrete and steel, so they show up on whoever's sheet drew the connection. Check all of these:
Structural concrete sheets. Wall elevations, foundation plans and slab plans often tag embeds with a mark like E1, EP-3 or EMB-A and a typical detail reference.
Steel framing plans. A beam framing into a concrete wall will reference a connection detail, and that detail shows the embed. The embed itself may not be tagged on the plan.
Typical connection details. A detail labeled "Beam to concrete wall, typ." might apply to 40 locations. That's 40 embeds hiding behind one drawing.
Embed schedules. Larger jobs have an embed schedule listing each mark with plate size, anchor type and quantity, sometimes with a location count.
Architectural sheets. Canopies, railings, storefront supports, louver frames and signage often have embeds drawn only on architectural details. They're easy to miss if you only open the S-sheets.
Precast and tilt-up panel drawings. Each panel can have several embeds. On tilt-up work, embed count per panel times panel count adds up fast.
MEP and equipment sheets. Rooftop unit supports and equipment pads sometimes call for embeds.
The mark naming varies by engineer. If you're not sure how to read the marks on a given set, our post on understanding mark designations covers how piece marks and type marks differ.
If you'd rather not open every concrete and architectural sheet twice, upload the full set to SteelFlo. It checks every page, so plate callouts on concrete and arch sheets land in your BOM next to the structural steel. The first 3 takeoffs are free.
How do you count embeds from schedules and typical details?
Embeds get missed because the count comes from two places that don't talk to each other: the schedule tells you what each mark is, and the plans tell you how many there are. Here's a method that holds up.
Step 1: Build the mark list
Start with the embed schedule, or with the embed details if there's no schedule. For each mark, write:
- Mark (E1, E2, ...)
- Plate size: thickness x width x length
- Anchors: type, diameter, length, quantity per embed
- Any welded angle or bent plate
- Finish
Step 2: Count locations per mark
Go sheet by sheet: concrete plans, wall elevations, steel framing plans, architectural details. Every time a mark shows up, tally it. For typical details, count the condition, not the detail. If "Beam to wall, typ." applies at every beam framing into the core wall, count those beams on the framing plan.
Step 3: Reconcile
Compare your location count against any quantity in the schedule. If the schedule says 24 E3s and you counted 21, find the other three or flag them. Don't silently use the higher number.
Step 4: Check the edges
- Slab edges at every level, not just the typical floor.
- Stair landings at each floor.
- Canopy and entry framing.
- Equipment and roof screens.
- Elevator pits and hoistway walls (sometimes rail bracket embeds).
Worked example: embed weight
Mark E2: PL 1/2" x 8" x 12" with (4) 1/2" diameter x 4" headed studs.
Plate. Plate weighs about 40.8 lb per square foot per inch of thickness. At 1/2" that's 20.4 lb per square foot. Area is 8 x 12 = 96 sq in, or 0.667 sq ft. Plate weight = 0.667 x 20.4 = 13.6 lb.
Studs. A 1/2" round bar weighs about 0.668 lb/ft. A 4" stud is 0.333 ft, so about 0.22 lb each before the head. Four studs add roughly 0.9 lb.
Total per embed: about 14.5 lb. If there are 36 E2s on the job, that's about 522 lb of embeds for one mark.
For other plate sizes, our steel plate weight chart has the per-square-foot values, and the steel weight calculator handles any plate dimension.
| Mark | Plate | Anchors | Weight each | Qty | Total |
|---|---|---|---|---|---|
| E1 | PL 3/8 x 6 x 8 | (2) 1/2" x 4" studs | ~5.6 lb | 48 | ~266 lb |
| E2 | PL 1/2 x 8 x 12 | (4) 1/2" x 4" studs | ~14.5 lb | 36 | ~522 lb |
| E3 | PL 3/4 x 10 x 16 | (6) 3/4" x 6" studs | ~38.5 lb | 12 | ~462 lb |
E1 math: (48 / 144) x 15.3 = 5.1 lb plate, plus about 0.45 lb studs. E3 math: (160 / 144) x 30.6 = 34.0 lb plate; a 3/4" bar is about 1.50 lb/ft, so six 6" studs add about 4.5 lb, for roughly 38.5 lb. Round as your shop prefers. The point is that these weights are small, so pricing by the pound alone won't cover the labor.
How do you price an embed: plate, studs, welding, galvanizing?
Embeds are labor-heavy for their weight. Price them per piece, built up from components, rather than by tonnage.
| Cost component | How to estimate it | Watch for |
|---|---|---|
| Plate material | Weight x your current plate $/lb, plus a cutting drop allowance | Small plates cut from a larger sheet; nesting matters |
| Cutting and drilling | Minutes per plate x shop rate | Burning vs shearing vs saw; holes for nailers or slotted holes |
| Headed studs | Stud count x stud unit cost | Stud diameter and length; ferrules |
| Stud welding | Studs per hour on your stud gun x shop rate | Gun setup time; small batches are slow |
| Fillet-welded anchors | Weld length x your weld rate | Deformed bar anchors are fillet-welded, slower than stud welding |
| Angles or bent plates | Separate line per mark | Brake time for bent plates |
| Galvanizing | Weight x galvanizer rate, plus minimum lot | Galvanizers often have a minimum charge; distortion on thin plates |
| Handling and tagging | Per piece | Every embed gets a mark so the concrete crew sets the right one |
| Delivery | Separate early trip | Embeds must arrive before the pour, ahead of the steel package |
Headed studs and their welding usually follow AWS D1.1 requirements for stud welding when a spec calls for it. If you weld studs in-house, know your setup time and production rate. Small batches cost far more per stud than long runs. The AWS standards catalog lists the current welding codes.
Material properties for plate are typically covered by ASTM A36 or A572, with general rolled-product requirements under ASTM A6/A6M. Check the project spec for the required grade, and whether galvanizing calls for ASTM A123 or A153.
For more on pricing small parts like these, our miscellaneous metals estimating guide covers per-piece labor units.
Who furnishes embeds, who sets them, and who surveys them?
This is where embed bids win or lose money. Three separate questions, and the drawings rarely answer all of them.
Who furnishes (fabricates and supplies) the embed? Often the steel or misc metals fabricator. Sometimes the concrete sub buys embeds directly. The spec section tells you: embeds may sit in the structural steel section, the metal fabrications section or a concrete section listing cast-in items.
Who sets (installs) the embed in the formwork? Almost always the concrete contractor, because it happens before or during the pour. Under the AISC Code of Standard Practice (AISC 303-22), anchor rods, foundation bolts and other embedded items are set by the owner's designated representative for construction, typically through the GC and its concrete sub, using approved embedment drawings. AISC's general contractor toolbox talk on embedded items summarizes those duties. Read the current Code yourself for the exact language; it's a free download from AISC.
Who surveys the as-built locations? The Code also puts the as-built survey of anchor rods and embedded items on the owner's side, not the fabricator's. That matters when an embed is set 2" out of place and someone has to pay for the field fix.
Spell all three out in your bid. A sample scope line:
Includes: fabrication and delivery of embed plates per embed schedule, tagged by mark, galvanized. Excludes: setting of embeds, layout, as-built survey, field welding to misplaced embeds, and embeds not shown on structural drawings.
Our bid scope letter guide has more exclusion language for concrete interface items.
What are the most common embed takeoff mistakes?
Counting the detail instead of the condition. A typical detail shown once can apply at dozens of locations.
Skipping the concrete and architectural sheets. Many embeds are drawn only there.
Pricing by weight alone. Embeds are light and labor-heavy. A tonnage price undercuts them badly.
Missing the early delivery. Embeds ship weeks ahead of the steel. If you price one delivery for the whole job, you're short.
Not carrying galvanizing minimums. A small embed lot can trigger a galvanizer's minimum charge.
Leaving setting and survey ambiguous. If your bid doesn't exclude them, you may end up owning them.
Ignoring revisions. Embed schedules change often during design. Check every revision cloud and recount the marks that changed.
Frequently Asked Questions
What is an embed plate in construction?
An embed plate is a steel plate with welded anchors, usually headed studs or rebar, cast into concrete so steel members or other items can be welded or bolted to it later. It's common at concrete walls, slab edges and columns where steel framing connects.
Who supplies embed plates, the steel fabricator or the concrete contractor?
It depends on the spec and the contract. Steel or misc metals fabricators often furnish embeds, while the concrete contractor sets them in the forms. Check the spec section and state the split clearly in your bid.
How do you calculate embed plate weight?
Multiply the plate area in square feet by 40.8 lb per square foot per inch of thickness, then by the thickness in inches. Add the anchor weight, using the bar weight per foot times stud length. A 1/2" x 8" x 12" plate with four 1/2" x 4" studs comes out around 14.5 lb.
Where are embed plates shown on drawings?
Look on structural concrete plans and wall elevations, steel connection details, embed schedules, architectural details for canopies and railings, and precast or tilt-up panel drawings. Many embeds only appear in typical details, so count conditions, not details.
Should embeds be priced per piece or by weight?
Per piece is safer. Embeds are light but need cutting, stud welding, finish, tagging and an early delivery, so tonnage pricing usually undercounts the labor.
Bottom line
Embeds are small pieces scattered across sheets nobody reads twice, and that's exactly why they get missed. Build the mark list, count every condition, price each embed as an assembly and spell out who sets and surveys them. If you want every plate callout on every sheet, concrete and arch pages included, pulled into one BOM you can review, upload the set to SteelFlo and confirm the boxes.