The D4 Full-Size Portaledge is the new paradigm in stormproof, compact, light, and easy-to-deploy portaledges systems.
Thirty years after first re-inventing the portaledge with the A5 design in 1987, in 2017, John Middendorf produced the first expedition D4 portaledge for Marek Raganowicz, who then used it for an extreme expedition in Baffin Island where he lived in it for 30 nights on two new big wall routes. Since then, the D4 has gotten incredible acclaim, proven with over 1000 nights on the vertical, and widely acknowledged as one of the biggest innovations in big wall gear since the first A5 stormproof portaledge.
TO ORDER: The D4 full-size (82" x 47.5") portaledge is produced by Durango Sewing Solutions, in Durango Colorado. You can order the D4 full-size Portaledge here:
Key information on the development of the D4 portaledge and the collaborative design process fostered by many top climbers :
Ozymandias D4 ledge product test (film by Simon Mentz)
Tree Camping with the D4 (Steve Pearce)
Note: The D4 Full Size Portaledge design now features the six-point suspension, as shown above. The four-point versions are lighter, but require more precise fine tuning to create a flat platform. The six-point also is stronger, of course, as it supports the frame in six places.