A three successive years (2009 -2011) study was conducted to estimate the effects of foundation concrete slabs diversity in prevention of subterranean termite attack on wooden boards. Sixteen foundation concrete slabs were constructed inside a 600m2 bungalow building, surrounded with fencing from hollow sand Crete blocks. Four groups of slabs were constructed, a- sand only, b- bush gravel, cmanually mixed crushed granite, and d- mechanically mixed crushed granite Data showed that, the fourth group of foundation concrete slabs had 100 percent prevention of termite penetration, followed by the third group which showed high resistance to subterranean termite penetration. The second group of slabs had limited resistance to subterranean termite penetration, while the first group had no resistance to prevent subterranean termite penetration.