Narrative:

Received a runway change from 13L to 13R after taxi out. No hotspots for 13R; but due to construction; taxi out was a threat; so we kept our heads up until established on taxiway a. After taxiing on taxiway a; first officer went heads down and I started to prepare for the departure plan briefing.I crosschecked my efb with my taxi track and identified the hold short line as an ILS hold short line due to the position of the line. I went over; stopped; and we briefed the departure plan; did before takeoff checklist; and subsequently looked for the hold short line. We saw one on the right/first officer side and behind us.there was an aircraft on final during this; but due to the position of the hold short line; there was no conflict and the aircraft landed normally. Tower never said anything either; but we found it worth mentioning.we were both distracted due to yet another checklist to be accomplished. It would also have helped if I knew the runway symbology; difference between a runway hold short line vs ILS hold short line. I do now.

Google
 

Original NASA ASRS Text

Title: B737 flight crew reported crossing the hold line for Runway 13R in DAL due to the Captain believing it was an ILS hold line and not the runway hold line.

Narrative: Received a runway change from 13L to 13R after taxi out. No hotspots for 13R; but due to construction; taxi out was a threat; so we kept our heads up until established on Taxiway A. After taxiing on Taxiway A; FO went heads down and I started to prepare for the departure plan briefing.I crosschecked my EFB with my taxi track and identified the hold short line as an ILS hold short line due to the position of the line. I went over; stopped; and we briefed the departure plan; did Before Takeoff Checklist; and subsequently looked for the hold short line. We saw one on the right/First Officer side and behind us.There was an aircraft on final during this; but due to the position of the hold short line; there was no conflict and the aircraft landed normally. Tower never said anything either; but we found it worth mentioning.We were both distracted due to yet another checklist to be accomplished. It would also have helped if I knew the runway symbology; difference between a runway hold short line vs ILS hold short line. I do now.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.