S.S.S. stands for Sport Staalt Spieren (sport steels muscles). It's a strength sports association on Tesselschadestraat in Alkmaar, and not a young one: the site shows celebrations of its 60th, 70th and 75th anniversaries. You'll find a complete gym, cardio, group classes and powerlifting.
It's an association, and you notice that in the terms. No contracts, no off-peak hours, you pay your fees per quarter. A one-off trial class is possible too.
For powerlifters, the competition culture is the interesting bit. The association has members who won European titles and a world title in the bench press, and it has held its own club bench press championships. The old wrestling hall of around 140 m² has been converted into a multi-purpose hall with thick crossfit tiles, suitable for powerlifting meets among other things. On its site the association links through to the KNKF Powerlifting site for the calendar and results.
Mind the opening hours, as they're more limited than at a commercial gym. Monday, Wednesday and Friday you're welcome from 10.00 to 22.00. On Tuesday and Thursday there's a break between 12.00 and 14.00, and on Thursday the doors close at 21.00. On Saturday you can train from 10.00 to 14.00.
Upcoming competitions in the Netherlands
- Beginner Meet Atlas 2026: 14 November 2026, Nijmegen, the Netherlands
- Lichtstad Cup 2026: 28 November 2026, Eindhoven, the Netherlands
- Sectievergadering KNKF – Sectie Powerlifting 2026: 12 December 2026, Son en Breugel, the Netherlands
All competitions are in the competition calendar.