Family Theraphosidae
Males are slightly smaller than females and this one was slightly smaller than my open hand.
They are ground dwellers and construct burrows, silk-lined of various depths.
The egg-sac is deposited in the bottom of a j-shaped burrow which might have a hollow space on the side which is used for storage.
They feed on beetles, grasshoppers, millipedes and other spiders.
Info: Spiders of the Kalahari (Ansie Dippenaar-Schoeman)