Stair Tread and Riser 

Species Thickness Width Length Picture
Santos Mahogany
(RED CABREUVA)
1" 12" 42"
1" 12" 48" (With semi-circle)
Brazilian Cherry
(JATOBA)
1" 12" 42"
1" 12" 48" (With semi-circle)
Brazilian Walnut
(IPE)
1" 12" 42"
1" 12" 48" (With semi-circle)
Oak 1" 12" 42"
1" 12" 48" (With semi-circle)