- I built mine with cardboard sides and it is now 1.5 years old. It has been under a car port style cover in the UK. I have plumb bobs as a secondary check onMessage 1 of 19 , Jul 9, 2012View SourceI built mine with cardboard sides and it is now 1.5 years old. It has been under a car port style cover in the UK. I have plumb bobs as a secondary check on things and it is still as straight as the proverbial die.You can see it here........http://www.youtube.com/watch?v=Af07Y2q8hdA----- Original Message -----From: Richard BertramSent: Monday, July 09, 2012 12:52 AMSubject: Re: [Airolite_Boats] Re: Strong back/station mold materials?I second what Gord said.Richard
From: "Caruk, Gord" <gord.caruk@...>
To: "Airolite_Boats@yahoogroups.com" <Airolite_Boats@yahoogroups.com>
Sent: Sunday, July 8, 2012 4:40 PM
Subject: [Airolite_Boats] Re: Strong back/station mold materials? [1 Attachment]There are those who have successfully built with the cardboard strongback and I hope that they will relay their experience. I however was concerned about humid days making the cardboard limp and causing some rigidity problems, so I built mine out of 1x5’s on the upper and lower surfaces, and 1/8” hardboard for the vertical surfaces. A step up in rigidity, even though still not very fancy. This strongback has lasted me 7+ years, and 4 hulls so far. The cost adder of the hardboard is really quite low, (a 2x4’ piece is $2.50) and in my opinion is well worth the slight extra cost and slight extra work for the enhanced rigidity and longevity. I also used hardboard for the frames and was quite happy with how it all worked out, and the cost is very low.