So I'm planning to build a low bench, also called a "Roman workbench" by Chris Schwarz, who (re)popularized the form. My known dimensions are going to be around 6ft long and 1 ft wide - it will have staked legs; the work surface will be around 18 in off of the ground. I find myself moving frequently, often living in apartments, so it may serve double-duty as a coffee table or seating - I mention that to say that aesthetics will matter in addition to utility.
I'm hoping the community can help me when it comes to wood selection. I'm relatively new to all this but this is my understanding:
- while thicker stock will deflect less, in this case deflection won't be much of an issue using at least 8/4 stock since the board width will be around 12 in (and the suspended portion of the bench, between the legs, will be effectively only around 5 ft). I weigh 150 lbs, but according to Woodbin's "Sagulator" a even a 200 lb load on its center would only deflect around only .015 inches in total, over time (I used soft maple in this calculation).
- that being said, with benches, more mass generally is better. And since my staked legs aren't not contributing much mass, 12/4 stock (or even thicker?) will make the bench less likely to scoot. It's worth noting however, that often you're also adding your mass by sitting or partially kneeling when using a low bench as well.
- Thicker stock will also given more purchase for the staked through tenons for the legs, as well as for holdfasts.
- Quarter sawn stock is generally desirable in a bench because it is more dimensionally stable.
Living in SE Pennsylvania, I'm partial to soft maple, or perhaps ash. Chris Schwarz recommends red oak, which is what he made his out of (I believe it was 12/4 and quarter sawn, see image below). It seems as though I can also get quarter-sawn sycamore at reasonable prices, but I've been warned against using it on a bench because it can be difficult to work - what has been your experience?
I will probably be buying F2S, as I do not have a thickness planer, but I may consider slabs that aren't completely dry (this is considered kosher, according to Schwarz in his book "Ingenious Mechanicks") and/or dimensioning it by hand. While I anticipate movement as the wood dries, I think I only really need to be concerned about that messing up the rake and splay of the staked legs (of course the legs can be leveled again and the surface will need to be dressed over time anyway).
Often times, hardwood dealers in my area seem to have stock that is either 12/4 and flat sawn or 8/4 and quarter sawn, when dealing with 11+ inch boards. Given the choice between quarter-sawn 8/4 stock or flat-sawn 12/4, which would be more important in a workbench. I am not necessarily in a rush, should I hold out (and save up) for quarter-sawn 12/4 stock?
Have I missed something? What route would you take? Generally, <0>ll look forward to inevitable dents and dings being part of its patina, since it probably being in living spaces a lot of the time (and I would like it to be purdy), would hard maple be a better choice?
I would love to hear your thoughts.
I'm hoping the community can help me when it comes to wood selection. I'm relatively new to all this but this is my understanding:
- while thicker stock will deflect less, in this case deflection won't be much of an issue using at least 8/4 stock since the board width will be around 12 in (and the suspended portion of the bench, between the legs, will be effectively only around 5 ft). I weigh 150 lbs, but according to Woodbin's "Sagulator" a even a 200 lb load on its center would only deflect around only .015 inches in total, over time (I used soft maple in this calculation).
- that being said, with benches, more mass generally is better. And since my staked legs aren't not contributing much mass, 12/4 stock (or even thicker?) will make the bench less likely to scoot. It's worth noting however, that often you're also adding your mass by sitting or partially kneeling when using a low bench as well.
- Thicker stock will also given more purchase for the staked through tenons for the legs, as well as for holdfasts.
- Quarter sawn stock is generally desirable in a bench because it is more dimensionally stable.
Living in SE Pennsylvania, I'm partial to soft maple, or perhaps ash. Chris Schwarz recommends red oak, which is what he made his out of (I believe it was 12/4 and quarter sawn, see image below). It seems as though I can also get quarter-sawn sycamore at reasonable prices, but I've been warned against using it on a bench because it can be difficult to work - what has been your experience?
I will probably be buying F2S, as I do not have a thickness planer, but I may consider slabs that aren't completely dry (this is considered kosher, according to Schwarz in his book "Ingenious Mechanicks") and/or dimensioning it by hand. While I anticipate movement as the wood dries, I think I only really need to be concerned about that messing up the rake and splay of the staked legs (of course the legs can be leveled again and the surface will need to be dressed over time anyway).
Often times, hardwood dealers in my area seem to have stock that is either 12/4 and flat sawn or 8/4 and quarter sawn, when dealing with 11+ inch boards. Given the choice between quarter-sawn 8/4 stock or flat-sawn 12/4, which would be more important in a workbench. I am not necessarily in a rush, should I hold out (and save up) for quarter-sawn 12/4 stock?
Have I missed something? What route would you take? Generally, <0>ll look forward to inevitable dents and dings being part of its patina, since it probably being in living spaces a lot of the time (and I would like it to be purdy), would hard maple be a better choice?
I would love to hear your thoughts.
