Building Layout
• Foundations can be marked off in a number of ways. The use of a level and rod though is one of the most accurate and efficient.
• Procedure
• Step I
– Choose a sight and clear all vegetation.
• Step II
– Establish a minimum grade
• Grade should allow for water drainage without excessive slope.
• Step III
– Locate the building corner stake
• Drive a stake at one corner of the intended foundation (stake A)
• On sloped ground place stake A at highest elevation.
• Measure off the correct distance along one side of the foundation and place a second stake (stake B)
• Keep this line parallel with existing sidewalks, fences, roads, etc. if needed.
• Locate the center of the stake tops by drawing 2 diagonal lines across the top, drive a nail part way where the two lines cross
• Attach a builders line to the nails in the stake tops.
• Position level directly over stake A and sight to stake B.
• Hold a plumb bob over the nail in stake B and align the vertical cross hairs of the level with the string.
• Hold a plumb bob over the nail in stake B and align the vertical cross hairs of the level with the string.
• Turn the level exactly 90°
• Measure off the correct length of the foundation.
• Align a plumb bob with the cross hairs to locate stake D.
• Connect stakes A and D with builders line.
• To determine location of the fourth corner (stake C).
• Measure distance from stakes B to D measure same distance from stake A to C.
• Measure correct length of foundation from stake A to C then from stake D to C.
• Where all three points meet mark stake C with a nail.
• Step IV
– Right angle batter boards must now be placed on all four corners of the foundation.
– Place batter boards approximately 6-8 feet from corner stakes and parallel from foundation walls.
– The batter boards may be set at any convenient height but higher than the highest foundation elevation.
Setting Batter Boards
• Step 1 – Setting batter boards to elevation.
– Set up level in the center if possible.
– Locate position of batter boards at corner A.
– Construct batter boards slightly above elevation and drive stakes until proper elevation is reached.
– Take several rod readings for accuracy.
– Do this at each corner
• Step II
– Tie strings on the batter boards to intersect directly over stake nails at each corner.
– Mark the string location on the batter board so the string can be easily replaced.
Building Layout
• Now foundation is staked out to the proper dimensions, to the proper elevation, and perfectly square.
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