Are the pikemen strips the standard 20mm? I'm hoping I can fit them on a 20mm deep DBx small scale base. 

AMA1 and AMA3 come four figures wide, facing forward in rank on a 20mm x 5mm strip.  AMA2 and AMA4 are based one behind the other in file on a 5mm x 30mm strip.

Does that help?

Thanks, that's precisely what I needed to know. 

Recommended reading - An Invincible Beast by Christopher Matthew. A really indepth look at the ancient pike phalanx.

Thanks for the recommendation; only $13 in Kindle format!

Not to contradict Peter (for fear of death, decapitation or being made to buy something!) but I think he might have made a small typo on the strip sizes for AMA2 and AMA4.

The strip sizes are 5mm wide and 20mm front-to-back. This means that if you're basing on 40mmx20mm bases you can fit a stonking 32 Phalangites on a single base. I've opted for the open-handed ones and using pins for their sarissae, it makes a formidable infantry block that no wise opponent would dare touch for fear of impaling their hand on the model.