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Field guide

Build or renovate a pitcher's mound

How to repair and rebuild the high-stress areas of the mound and home plate, with a coverage chart showing how many clay bricks and bags you need.

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The front of the pitching rubber, the landing area, and the batter's and catcher's boxes take more punishment than the rest of the field combined. Use GameTime Mound Clay and GameTime Clay Bricks to construct, rebuild or repair them.

1 bag = 4 sq ftOne 50 lb bag of GameTime Mound Clay covers 4 square feet at a depth of 1 inch.

Repair or rebuild?

Repairing worn spots

  1. Broom off all loose dirt from the stress area and lightly water it.
  2. Add GameTime Mound Clay in 1 inch layers.
  3. Tamp the clay to a firm, level surface.
  4. Repeat steps 2 and 3 until the new surface is level with the old surface.

Rebuilding the area

  1. Remove 2 to 4 inches of existing soil from the stress area and lightly water it.
  2. Add GameTime Mound Clay in 1 inch layers.
  3. Tamp the clay to a firm, level surface, adding water as necessary.
  4. Repeat steps 2 and 3 until the new surface is level with the old surface.

Rebuilding with clay bricks: 6 steps

  1. Measure. Measure out the pitcher's mound using the recommended dimensions.
  2. Cut out. Cut out and remove all loose dirt from the high-stress area around the mound to a depth of 3 inches.
  3. Place bricks. Place GameTime Clay Bricks as evenly and as close together as possible.
  4. Water and tamp. Water the cut area, then tamp the bricks into place.
  5. Fill. Fill the remaining half inch with the loose material you removed or with GameTime Mound Clay.
  6. Level and finish. Level and compact the new surface, then topdress with GameTime Pro infield conditioner.

Where the high-stress areas are

High-stress areas of a pitcher's mound An 18 foot circle containing a 60 by 106 inch work area. The top 34 inches is the table with the pitching rubber. The bottom 32 inches is the landing area. The 40 inches between is the slope. Table Slope Landing area 60 in 34 in 40 in 32 in 106 in overall 9 ft radius Pitching rubber Shaded areas are high stress. Home plate is toward the bottom.

Mound clay and clay brick coverage chart

Find your field type and the area you are working on. Bag counts are shown for depths of 2, 4 and 6 inches.

High-stress areas only (baseball)
AreaSizeClay bricksBags at 2 inBags at 4 inBags at 6 in
Table34 x 60 in647.51522.5
Landing area32 x 60 in6071421
Batter's boxes*32 x 60 in each120142842
Catcher's box32 x 48 in485.51116.5
Total2923468102
Baseball: entire area
AreaSizeClay bricksBags at 2 inBags at 4 inBags at 6 in
Batter's boxes*48 x 72 in each216244872
Table and slope60 x 106 in199224466
Catcher's box43 x 69 in9310.52131.5
Softball: entire area
AreaSizeClay bricksBags at 2 inBags at 4 inBags at 6 in
Batter's boxes*36 x 84 in each189214263
Mound36 x 60 in657.51522.5
Youth baseball: entire area
AreaSizeClay bricksBags at 2 inBags at 4 inBags at 6 in
Batter's boxes*36 x 72 in each162183654
Mound slope40 x 60 in7581624
Table12 x 40 in14246

All quantities are approximate. *Brick and bag counts are for both batter's boxes.

Ready to order?Send us your field type and the areas you are rebuilding. We will confirm the quantity and quote it delivered. Get a quote or find a distributor.
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