Universal Hardscapes
How to Plan a Concrete Block Privacy Wall in Florida
A 6-foot wall uses about 6.75 nominal 8 × 8 × 16 block equivalents per linear foot before waste. A 100-foot wall needs about 709 block equivalents including 5% waste. Use the approved wall design to separate regular units, bond beam units, half units and openings.
Project planning · Universal Hardscapes
Published
Step 1: Count your blocks
A standard 8x8x16 block is 8 inches tall and 16 inches long on the face (actual size 7-5/8 x 7-5/8 x 15-5/8 in, plus a 3/8-inch mortar joint).
- Blocks per course: 0.75 per linear foot of wall
- Courses: wall height in inches ÷ 8 (a 6-ft wall = 72 ÷ 8 = 9 courses)
- Blocks per linear foot: 0.75 × courses
| Wall height | Courses | Blocks per linear ft | 50 ft wall (+5%) | 100 ft wall (+5%) | 150 ft wall (+5%) |
|---|---|---|---|---|---|
| 4 ft | 6 | 4.5 | 237 blocks / 4 pallets | 473 blocks / 7 pallets | 709 blocks / 10 pallets |
| 5 ft 4 in | 8 | 6 | 315 blocks / 5 pallets | 630 blocks / 9 pallets | 945 blocks / 14 pallets |
| 6 ft | 9 | 6.75 | 355 blocks / 5 pallets | 709 blocks / 10 pallets | 1,064 blocks / 15 pallets |
| 8 ft | 12 | 9 | 473 blocks / 7 pallets | 945 blocks / 14 pallets | 1,418 blocks / 20 pallets |
That works out to 1.125 block equivalents per square foot of wall face. Eight full courses are 64 inches (5 ft 4 in), not exactly 5 feet. The table is a preliminary gross-area estimate, before subtracting openings or splitting unit types. Pallet quantities assume all units pack at 72 per pallet; a mixed order must be calculated by unit type.
Our 8-inch regular, bond beam and header block ship 72 blocks per pallet; half block ships 120 per pallet. Pallet counts above assume 72 per pallet, rounded up to whole pallets.
Step 2: Pick the right block for each spot
| Where in the wall | Block | Why |
|---|---|---|
| Most of the wall | 8″ regular block (8x8x16) | Standard full-length unit |
| Top course (and any mid-height beam) | Bond beam block | Open channel holds horizontal rebar and grout |
| Wall ends and openings | Half block | Finishes ends without cutting full blocks |
| Details calling for a header unit | Header block | Use only where specified; a header unit alone is not a structural lintel |
| Wall carrying electrical (lights, gate opener) | Conduit block | Room for conduit |
Reference links: 8″ regular block (8x8x16), Bond beam block, Half block, Header block, Conduit block.
Mortar and sand from the same plant: Mason cement mix Type S and washed masonry sand in 1-cubic-yard bulk bags.
Step 3: Check permits before you dig
Florida counties regulate masonry walls differently, especially for height, setbacks from property lines and wind design.
- Check before you dig: call your county building department (Hillsborough, Pinellas, Pasco, Manatee, Polk or Sarasota) and your HOA before ordering material.
- If a permit is required, the county may ask for drawings showing the footing, rebar and grout.
- For every project, confirm the applicable structural design requirements before work. Wind loads, openings, wall height, soil and footing conditions affect the design; a licensed design professional must specify structural elements where required.
Step 4: Review the construction sequence with your contractor
This is a planning overview, not a construction specification. The approved plans control footing, reinforcement, grout, mortar, beam locations and opening support. Do not use a header block alone to span a gate or opening.
- Lay out the wall line and check property lines.
- Pour a reinforced concrete footing to the depth and width your design calls for.
- Set vertical rebar in the footing at the spacing your design specifies.
- Lay the first course in a full mortar bed and check it is level and straight.
- Build up course by course, staggering joints by half a block (running bond).
- Grout the cells that hold vertical rebar.
- Lay the bond beam course with horizontal rebar, then grout it solid.
- Cap, stucco or paint the wall.
Who builds block walls in Tampa Bay?
Universal Hardscapes manufactures the block; we don't build walls. Use Find a Contractor to request help finding an independent contractor. Confirm the contractor’s licensing and suitability for your project.
Get your block list checked. Send your wall length, height and number of openings to (813) 884-0010 or info@universalhardscapes.com, and we'll confirm the block count by type. Contractors pick up at our Tampa plant, 7720 US Hwy 301 N (Monday–Friday, 8 am–5 pm). We deliver within 100–120 miles of our Tampa plant, covering all of Tampa Bay plus Orlando, Ocala and Fort Myers. We offer free truckload delivery within a 20-mile radius of the plant.
For engineered opening support, see CMHA guidance on reinforced masonry lintels.
Frequently asked questions
How many blocks do I need for a 6-foot privacy wall?
Use about 6.75 nominal 8 × 8 × 16 block equivalents per linear foot before waste. A 100-foot wall needs about 709 including 5% waste. Subtract openings and confirm unit types against the approved plans.
How many concrete blocks are in a square foot of wall?
A nominal 8 × 8 × 16 unit covers 8 × 16 inches of wall face including its mortar-joint module, giving 1.125 block equivalents per square foot.
Which blocks go on top of a block wall?
Bond beam units accommodate horizontal reinforcement and grout where specified. Follow the approved design for beam locations, reinforcement and the cap.
Do I need a permit for a block wall in Florida?
Check with the local building department before ordering or starting work. Height, location, setbacks, wind loads and the scope of work determine the applicable permit and design requirements.
Who sells concrete block near Tampa?
Universal Hardscapes manufactures CMU at 7720 US Hwy 301 N, Tampa, FL 33637. Contractor pickup is Monday–Friday, 8 am–5 pm. Call (813) 884-0010 to confirm your order and availability.
Planning a project?
Talk with Universal about the materials, samples and pricing for your project.
Discuss your material order