90 degree stalls

[straightline]

He found it after I jacked with him for a while.

[spraytip]

Well Straightline did the guy ever find his phone ? Merry Christmas All !!!

[stripe guy 2]

Wally has the best & fastest method to mark a 90 degree stall, but you do not need to carry a special rope for that.  You can use your 40' of your 100' tape, instead of the rope which is likely to get lost.  My calculator tells me the middle of the 40' will almost be 18' from the base line

[stripinstraight]

We do it like    frfghtchd does [font='palatino linotype'].  We have a permanent string and small dowel with aprox 25 ft of string on it.  One end of the string has a small flat washer  tied to it and we permanently connect the other end to the end of a 1 x 1 stick aprox 2 ft long.  Also have a chalk stick on that end attached with several wrappings of elec tape.  pull the string tight, keep the stick vertical and swing an arc from the two markings and there you have it.  We then just wind the sting end wise on the stick and its ready to store,  We also attach another piece of chalk to the other end of the stick for other misc markings,  Works great![/font]

[stripe guy 2]

Wally, has a great method, it is the easiest method I have ever read.  Thank you.

[straightline]

Um, yeah, it's a new string every time.

Yea, one of my guys lost his phone so he calls me on his phone to ask if he left it at the office.

[wally]

Um, yeah, it's a new string every time.

[straightline]

I do something similar to Wally. Mark all your spots along curb but then i just take chalk line and put it on first mark at curb and make a small loop in it about 20 ft out from curb and swing an arc out from approximately where second line will be with a piece of chalk in loop then have helper or use ur ghost man string holder  to hold end of chalk line at 3 rd spot along curb and cross first arc which should give u a straight line to snap for your second spot. Just make sure your chalk stays in same spot in loop to get it right. This works well for me when by myself and no one is there to hold other end of a tape. Hopefully my explanation was clear enough

Actually what I use is a 40' string with a loop in the center of it.  I use buckets to hold the ends, put my finger in the loop and pull it tight.  But when I try to explain or describe that everybody gets confuse!

If it works, it works, and a lot better then all that math crap, just my guys would lose the string.

[wally]

I do something similar to Wally. Mark all your spots along curb but then i just take chalk line and put it on first mark at curb and make a small loop in it about 20 ft out from curb and swing an arc out from approximately where second line will be with a piece of chalk in loop then have helper or use ur ghost man string holder  to hold end of chalk line at 3 rd spot along curb and cross first arc which should give u a straight line to snap for your second spot. Just make sure your chalk stays in same spot in loop to get it right. This works well for me when by myself and no one is there to hold other end of a tape. Hopefully my explanation was clear enough

Actually what I use is a 40' string with a loop in the center of it.  I use buckets to hold the ends, put my finger in the loop and pull it tight.  But when I try to explain or describe that everybody gets confuse!

[straightline]

Just make a triangle with three equal sides, the points will be dead center of the opposite sides.

[frfghtrchd]

I do something similar to Wally. Mark all your spots along curb but then i just take chalk line and put it on first mark at curb and make a small loop in it about 20 ft out from curb and swing an arc out from approximately where second line will be with a piece of chalk in loop then have helper or use ur ghost man string holder  to hold end of chalk line at 3 rd spot along curb and cross first arc which should give u a straight line to snap for your second spot. Just make sure your chalk stays in same spot in loop to get it right. This works well for me when by myself and no one is there to hold other end of a tape. Hopefully my explanation was clear enough

[wally]

You can use a 3-4-5 triangle to get what you need, or you can use an alternate method (you need two tape measures for this one):
 
First mark all of the stall lines at the curb face. Once that is done, go back to your first mark and pull the tape measure out about 20' pull it out away from the curb and towards your second mark so that it will be at an angle.  Lock that tape and go to the THIRD mark with your other tape.  Pull it out 20' away from the curb and again toward the second mark. 
 
The location where the two tapes intersect each other at the 20' mark will be at a 90' angle to the curb face where your second mark is. Pop that line in and measure off of it to get all your other stalls.
 
This is the same method used when your stalls are put in on a curve, it just happens to work when it's straight too.  I'll try to give a picture of what it looks like below, but I'll probably have to edit it a few times to get it to look right.
 
 
 
(first mark)       (second mark)        (third mark)
     .                        .                        .
      \                                               /
 
         \                                          /
 
            \                                     /
 
               \                                /
   
                  \                           /
                     
                     \                      /
 
                        \                 /
                         
                           \            /
 
                              \       /
                   
                                 \  /
                                  #
 
the # shows where the two tape measures intersect at 20' (they both need to be on the 20' mark and they need to be exactly on the first and 3rd marks)  This point will be at a 90 degree angle on your second mark.

[Milt]

That method works well. We use a construction calculator. We pull a line at the distance from the curb the lines are to be. Then enter that measurement as the run into the calq. Then a measurement along the curb (can be anything but we usually use the stall width if known) enter that as the rise. Then just hit the diagonal butten and it will give you the measurement to square with. They are a very inexpensive handy little tool. We like it because if you have odd measurements like stall width 9'3" and base line 18'4' you only have to measure and mark once to square that first line.

[Calif Striper]

I think you are talking about the Pythagora's law.  Any combination of 3-4-5. I usually use 9-12- & 15 feet. From your starting point (A) at the curb measure 9'  along the curb to point (B). You start with tape measure#1 from point (A) out at an approx. 90 degree angle to 12'. With tape measure #2 starting from point (B) angling to tape measure #1 you move both tape measures until the 12' point on tape #1 intersects the 15' point on tape #2. This is is point (C). Snap a line from point (A) to point (C) and you have a 90 degree angle. Or so goes the theory.

[LaredoStriping]

 please explain your question a bit more.  do you mean how do you know that you are 90 deggree straight?